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EP0906801A3 - A method for laminate forming a sand mould and a method for producing a casting using the same - Google Patents

A method for laminate forming a sand mould and a method for producing a casting using the same Download PDF

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Publication number
EP0906801A3
EP0906801A3 EP98124848A EP98124848A EP0906801A3 EP 0906801 A3 EP0906801 A3 EP 0906801A3 EP 98124848 A EP98124848 A EP 98124848A EP 98124848 A EP98124848 A EP 98124848A EP 0906801 A3 EP0906801 A3 EP 0906801A3
Authority
EP
European Patent Office
Prior art keywords
sand
sand mould
casting
producing
same
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98124848A
Other languages
German (de)
French (fr)
Other versions
EP0906801A2 (en
EP0906801B1 (en
Inventor
Hiromoto Toyota Jidosha Kabushiki Kaisha Satoh
Yukio c/o Toyota Jidosha Kabushiki Kaisha Otsuka
Motoaki c/o Toyota Jidosha Kabushiki Kaisha Ozaki
Masuo c/o Toyota Jidosha Kabushiki Kaisha Shimizu
Yuji c/o Toyota Jidosha Kabushiki Kaisha Okada
Yoshizumi Toyota Jidosha Kabushiki Kaisha Senda
Soya c/o Toyota Jidosha Kabushiki Kaisha Takagi
Masaru c/o Toyota Jidosha Kabushiki Kaisha Ogura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP29093295A external-priority patent/JP3147744B2/en
Priority claimed from JP7330471A external-priority patent/JPH09168840A/en
Priority claimed from JP8123787A external-priority patent/JPH09308942A/en
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP0906801A2 publication Critical patent/EP0906801A2/en
Publication of EP0906801A3 publication Critical patent/EP0906801A3/en
Application granted granted Critical
Publication of EP0906801B1 publication Critical patent/EP0906801B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3807—Resin-bonded materials, e.g. inorganic particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Casting Devices For Molds (AREA)

Abstract

After sand of one layer is loaded into a sand layer elevator (20), a shading mask (38) is positioned above the sand, and a diffused laser beam is irradiated from a diffused laser irradiating source (16). Thereby, a predetermined range of sand under the shading mask (38) is exposed and this exposed portion is cured. This operation is repeated for a predetermined number of sand layers and cured portions are piled up to directly form a 3-D sand mould. Particularly, a diffused laser beam is used to cure a wide range of sand at a time, thereby making sand mould mass-production possible.
EP98124848A 1995-11-09 1996-10-29 Method and apparatus for producing a 3-D sand mould with core by laminate forming Expired - Lifetime EP0906801B1 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP29093295A JP3147744B2 (en) 1995-11-09 1995-11-09 Lamination molding method of sand mold and method of manufacturing casting using the same
JP29093295 1995-11-09
JP290932/95 1995-11-09
JP33047195 1995-12-19
JP330471/95 1995-12-19
JP7330471A JPH09168840A (en) 1995-12-19 1995-12-19 Molding method of sand mold by stacking method
JP12378796 1996-05-17
JP123787/96 1996-05-17
JP8123787A JPH09308942A (en) 1996-05-17 1996-05-17 Manufacture of mask for forming mold laminated layer
EP96117352A EP0776713B1 (en) 1995-11-09 1996-10-29 A method for laminate forming a sand mould and a method for producing a casting using the same

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP96117352A Division EP0776713B1 (en) 1995-11-09 1996-10-29 A method for laminate forming a sand mould and a method for producing a casting using the same

Publications (3)

Publication Number Publication Date
EP0906801A2 EP0906801A2 (en) 1999-04-07
EP0906801A3 true EP0906801A3 (en) 1999-06-23
EP0906801B1 EP0906801B1 (en) 2004-08-11

Family

ID=27314794

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98124848A Expired - Lifetime EP0906801B1 (en) 1995-11-09 1996-10-29 Method and apparatus for producing a 3-D sand mould with core by laminate forming
EP96117352A Expired - Lifetime EP0776713B1 (en) 1995-11-09 1996-10-29 A method for laminate forming a sand mould and a method for producing a casting using the same

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP96117352A Expired - Lifetime EP0776713B1 (en) 1995-11-09 1996-10-29 A method for laminate forming a sand mould and a method for producing a casting using the same

Country Status (5)

Country Link
US (1) US5718279A (en)
EP (2) EP0906801B1 (en)
KR (1) KR100205677B1 (en)
CN (1) CN1088415C (en)
DE (2) DE69604043T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106001416B (en) * 2016-07-14 2018-08-14 辽宁森远增材制造科技有限公司 The disposable laser 3D printing machine completed high-precision sand mold and made

Families Citing this family (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0906801B1 (en) * 1995-11-09 2004-08-11 Toyota Jidosha Kabushiki Kaisha Method and apparatus for producing a 3-D sand mould with core by laminate forming
US7332537B2 (en) * 1996-09-04 2008-02-19 Z Corporation Three dimensional printing material system and method
JPH10166460A (en) * 1996-12-06 1998-06-23 Toyota Motor Corp Method and device for laminate shaping
CA2227672A1 (en) * 1997-01-29 1998-07-29 Toyota Jidosha Kabushiki Kaisha Method for producing a laminated object and apparatus for producing the same
JP3233350B2 (en) * 1997-04-25 2001-11-26 トヨタ自動車株式会社 Mask used for additive manufacturing, method of manufacturing mask, and method of using mask
JPH115254A (en) * 1997-04-25 1999-01-12 Toyota Motor Corp Lamination shaping method
JP3518726B2 (en) 1998-07-13 2004-04-12 トヨタ自動車株式会社 Additive manufacturing method and resin-coated sand for additive manufacturing
DE19851224C1 (en) * 1998-11-06 2000-05-04 Fraunhofer Ges Forschung Process for producing defined free form surfaces in molding material comprises applying the molding material and forming free form surfaces using a rolling device
EP1226019B1 (en) * 1999-11-05 2004-03-03 Z Corporation Methods of three-dimensional printing
US6627835B1 (en) 2000-02-02 2003-09-30 Purdue Research Foundation Three dimensional object fabrication techniques
US20010050031A1 (en) 2000-04-14 2001-12-13 Z Corporation Compositions for three-dimensional printing of solid objects
EP1228836B1 (en) * 2001-02-06 2007-02-07 Yamazaki Mazak Kabushiki Kaisha Method of producing a jig for three dimensional linear cutting machining
JP3792168B2 (en) * 2002-03-12 2006-07-05 ナブテスコ株式会社 Optical three-dimensional modeling method and apparatus
DE10309519B4 (en) * 2003-02-26 2006-04-27 Laserinstitut Mittelsachsen E.V. Method and device for producing miniature bodies or microstructured bodies
ES2376237T3 (en) * 2003-05-21 2012-03-12 Z Corporation THERMOPLENE POWDER MATERIAL SYSTEM FOR APPEARANCE MODELS FROM 3D PRINTING SYSTEMS.
JP2005043652A (en) * 2003-07-22 2005-02-17 Fuji Xerox Co Ltd Method for manufacturing polymer optical waveguide and apparatus for manufacturing the same
CN100386173C (en) * 2005-12-09 2008-05-07 大连理工大学 Laser Rapid Prototyping Method Based on Contour Scanning of Coating Powder Material
EP2001656B1 (en) * 2006-04-06 2014-10-15 3D Systems Incorporated KiT FOR THE PRODUCTION OF THREE-DIMENSIONAL OBJECTS BY USE OF ELECTROMAGNETIC RADIATION
US8137607B2 (en) * 2006-11-07 2012-03-20 Ford Motor Company Process for making reusable tooling
KR101407801B1 (en) * 2006-12-08 2014-06-20 3디 시스템즈 인코오퍼레이티드 Three-dimensional printing material systems and methods using peroxide curing
EP2109528B1 (en) * 2007-01-10 2017-03-15 3D Systems Incorporated Three-dimensional printing material system with improved color, article performance, and ease of use and method using it
WO2008103450A2 (en) 2007-02-22 2008-08-28 Z Corporation Three dimensional printing material system and method using plasticizer-assisted sintering
KR100942924B1 (en) * 2007-12-28 2010-02-22 한국생산기술연구원 Mold manufacturing method and apparatus for sand casting
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GB201118807D0 (en) * 2011-11-01 2011-12-14 Univ Loughborough Method and apparatus
US8567477B2 (en) * 2012-02-29 2013-10-29 Ford Global Technologies, Llc Mold core for forming a molding tool
US20130221192A1 (en) * 2012-02-29 2013-08-29 Ford Motor Company Interchangeable mold inserts
US20130221191A1 (en) * 2012-02-29 2013-08-29 Ford Motor Company Mold core package for forming a powder slush molding tool
AU2013359173A1 (en) 2012-12-14 2015-05-21 Western Michigan University Research Foundation Patternless sand mold and core formation for rapid casting
US20150000855A1 (en) * 2013-07-01 2015-01-01 Case Western Reserve University Holder block system and methods for metal casting
WO2015073081A1 (en) 2013-08-20 2015-05-21 The Trustees Of Princeton University Density enhancement methods and compositions
CN105492138B (en) * 2013-08-30 2018-09-25 旭有机材工业株式会社 The formative method of mold is laminated
JP6503375B2 (en) * 2014-05-08 2019-04-17 ストラタシス リミテッド Method and apparatus for 3D printing by selective sintering
US9844917B2 (en) * 2014-06-13 2017-12-19 Siemens Product Lifestyle Management Inc. Support structures for additive manufacturing of solid models
JP5917636B2 (en) * 2014-09-17 2016-05-18 株式会社東芝 Material supply apparatus, additive manufacturing apparatus, and material supply method for additive manufacturing apparatus
US10906244B2 (en) * 2015-04-02 2021-02-02 Xerox Corporation Ultrasonic removal methods of three-dimensionally printed parts
DE102015118162A1 (en) * 2015-10-23 2017-04-27 Fit Ag Device for producing three-dimensional objects
RU2680168C2 (en) * 2015-12-15 2019-02-18 Общество с ограниченной ответственностью "Аддитивные технологии" Method of manufacturing three-dimensional objects of complex shape from sand-polymer systems
US10493523B1 (en) 2016-02-04 2019-12-03 Williams International Co., L.L.C. Method of producing a cast component
CN105798228B (en) * 2016-03-23 2018-01-30 上海交通大学 The shaping of sand mo(u)ld line is plated in method
CN105964952B (en) * 2016-07-14 2018-01-30 辽宁森远增材制造科技有限公司 Sand mold making laser 3D printing platform with hot type sandbox
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US11813799B2 (en) 2021-09-01 2023-11-14 General Electric Company Control systems and methods for additive manufacturing
PL244369B1 (en) * 2021-09-11 2024-01-15 3Dartech Spolka Z Ograniczona Odpowiedzialnoscia Method of making decorative facade and glass panels from sand and glass frits and a head for 3D printing with dry sand and glass frit
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247508A (en) * 1979-12-03 1981-01-27 Hico Western Products Co. Molding process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4504089A (en) * 1988-10-05 1990-05-01 Michael Feygin An improved apparatus and method for forming an integral object from laminations
US5204055A (en) * 1989-12-08 1993-04-20 Massachusetts Institute Of Technology Three-dimensional printing techniques
GB9105870D0 (en) * 1991-03-20 1991-05-08 Xaar Ltd Fluid cooled contact mask
US5504301A (en) * 1994-03-21 1996-04-02 Laser Cut Images International, Inc. Apparatus and method for laser engraving thin sheet-like materials
EP0906801B1 (en) * 1995-11-09 2004-08-11 Toyota Jidosha Kabushiki Kaisha Method and apparatus for producing a 3-D sand mould with core by laminate forming

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247508A (en) * 1979-12-03 1981-01-27 Hico Western Products Co. Molding process
US4247508B1 (en) * 1979-12-03 1996-10-01 Dtm Corp Molding process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106001416B (en) * 2016-07-14 2018-08-14 辽宁森远增材制造科技有限公司 The disposable laser 3D printing machine completed high-precision sand mold and made

Also Published As

Publication number Publication date
KR970073797A (en) 1997-12-10
CN1157761A (en) 1997-08-27
DE69633143T2 (en) 2005-08-04
EP0776713A3 (en) 1997-09-24
DE69633143D1 (en) 2004-09-16
EP0776713B1 (en) 1999-09-01
DE69604043T2 (en) 2000-04-13
KR100205677B1 (en) 1999-07-01
CN1088415C (en) 2002-07-31
EP0906801A2 (en) 1999-04-07
EP0906801B1 (en) 2004-08-11
US5718279A (en) 1998-02-17
DE69604043D1 (en) 1999-10-07
EP0776713A2 (en) 1997-06-04

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